baber/WOPTO huggingface dataset:
Patent GB-128661-A (GB)
Title: Improvements in Firing Devices for Submarine Mines.
Inventor: DUFFIE JOHN JEFFERSON
IPC: F42B22/04
Filed: 1917-08-28
Abstract: 128,661. Duffie, J. J. Aug. 28, 1917. Sounds, controlling and actuating apparatus by.-Consists in tiring submarine mines on the approach of a submarine vessel by means of a thermomicrophonic apparatus set in action by the sound from the propeller of the submarine vessel. As shown, the apparatus comprises a microphonic diaphragm 33, Fig. 3, connected to a magnifying lever 36, which, in vibrating, touches alternately the flanges 37 of a contact piece 38. The intermittent current thus produced in a coil 29, Fig. 5, heats a mercurial thermometer 17, the mercury of which rises to an adjustable contact 24, thereby completing the circuit of a solenoid 4, Fig. 1. The solenoid then drives a firing-pin 5 against a cap 6 to fire the mine. This apparatus is arranged in a compartment 7 at the top of a mine, the microphonic receiver being screwed into a socket 2.
Patent GB-412738-A (GB)
Title: Improvements in or relating to spanners
IPC: B25B13/48
Filed: 1933-04-28
Abstract: 412,738. Spanners. CARINGTON, C. M., Ladder Stile Cottage, Kingston Hill, Surrey, and K.L.G. SPARKING PLUGS, Ltd., Robinhood Engineering Works, Putney Vale, London. April 28, 1933, No. 12387. [Class 61 (iii).] Spanners of the kind comprising relatively rotatable nut &c. engaging members, one for engaging an object and the other for engaging another object which is to be rotated relatively to the first, and more particularly for tightening the gland nut of a sparking plug have a series of holes, abutments &c. on each of the spanner members, the two series of abutments being arranged in vernier relationship. In the construction shown a spanner 18 adapted to engage the body nut of the sparking plug is riveted to a disc 17 rotatably mounted on another spanner member adapted to engage the gland nut 13 and secured to another disc 15. Eight equally spaced holes 21 are provided near the edge of disc 15 and nine holes 22 in disc 17 enabling the discs to be rotated relatively in short steps by pushing a pointed tommy bar into pairs of partly coincident holes.
Patent GB-998265-A (GB)
Title: New cephalosporin compounds and method for preparing same
IPC: C07D501/26
Filed: 1962-03-30
Abstract: Relates to cephalosporins having the structural formula <FORM:0998265/C2/1> wherein R1, taken alone, is -OH, C1-C8 acyloxy, or tertiary amino; R2 is -OH when R1 is -OH; R2 is -OH when R1 is C1-C8 acyloxy; R2 is O- when R1 is tertiary amino; R1 and R2, when taken together, are -O-; R3 and R4 are hydrogen, C1-C6 alkyl, C2-C6 alkenyl, C5-C7 cycloalkyl, or C2-C6 alkoxyalkyl; n is 0, 1, 2, 3 or 4; R5 is C1-C6 alkyl, C2 -C6 alkenyl, C2-C6 alkinyl, C5-C6 cycloalkyl, phenyl, b -furyl, b -thienyl, thenyl or naphthyl or a fluoro, chloro, bromo, nitro, trifluoromethyl, C1-C4 alkyl, C1-C4 alkylmercapto, or C1-C4 alkoxy substitution product thereof; the salts thereof with pharmaceutically acceptable cations and anions and the pharmaceutically acceptable esters and amides of the cephalosporins. The cephalosporins may be prepared by reacting the relevant nucleus with the appropriate acylating agent. Examples describe the preparation of 7-phenyl-, 7-p-chlorophenyl-, 7 - (51 - chloro - 21 - methyl), 7 - benzyl -, 7 - n - butyl and 7 - isoamylmercaptoacetamidocephalosporanic acid, 7-a -m-tolylmercaptopropionamido- and 7 - (a  - methyl - a  - phenylmercaptopropionamido) - cephalosporanic acid. a -Methyl-a  - phenylmercaptopropionic acid may be prepared by reacting chloroform with a solution of thiophenol and potassium hydroxide in acetone, and may be converted to the acid chloride by reaction with thionyl chloride. o - Trifluoromethylthiophenol may be prepared by reacting o-trifluoromethylaniline with sodium nitrite, treating the reaction product with potassium ethyl xanthate, and refluxing with alcoholic potassium hydroxide. o-Trifluoromethylphenylmercaptoacetic acid is prepared by reacting o-trifluoromethylthiophenol with monochloroacetic acid in the presence of sodium hydride, and may be converted to the acid chloride by reaction with thionyl chloride. Specifications 810,196 and 953,695 are referred to.
Patent GB-528068-A (GB)
Title: Instructive and demonstration apparatus or toy for the construction of various electric machines
IPC: G09B23/18
Filed: 1939-04-26
Abstract: 528,068. Making toy &c. dynamos. LATOUR, M. April 26, 1939, No. 12543. Convention date, May 9, 1938. [Class 83 (ii)] [Also in Group XXXV] In the construction of instructive or toy dynamo-electric machines, the outer parts of the machine are assembled about a member affording temporary axial support along the longitudinal ,axis and along several radial axes, the member then being removed for allowing the assembly of the inner parts of the machine which are thus correctly centred with respect to the outer parts. The temporary supporting member 1, Fig. 1, comprises a sheet metal cross having the ends 2 of its arms bent up and drilled to receive a spindle 4b and tubular spacing members or stays 7. In one form of machine, a circular frame of overlapping arcuate plates is built up around the member 1 and stays 7. The bolts 12 and stays 7 lying in the radial axis 5-5 are then removed, the member turned through 90 degrees and the spindle 4b inserted in the position of the longitudinal axis. The member is then in the position for the assembly of the rotor bearings using curved and straight plates 19, 20, Fig. 3. All the plates are formed at their ends with oblong holes or notches to facilitate bolting together. In another form, Fig. 5, the outer frame is built up of straight plates 32 and bent plates 33. Figs. 11 and 12 show the assembly of a rotor. A member 41 having three lateral slotted tongues is locked to a spindle 40 by means of a slotted tubular bolt 42 and conical nuts 43. A coil 38 is secured to each of the tongues by means of screws 45, 46, a spacing member 47 and pole pieces 48, 49. The brushes 50, which are bent to conform to the commutator curvature, are carried by a member 55 angularly adjustable about the spindle and at their ends bear on a collector 57 comprising slotted end plates 61, Fig. 15, of insulating material between which are clamped an axial spacing member 63 and either a number of blades 66 or a single cylindrical sheet member. A brush-gear is described (Fig. 14, not shown) in which the rocker arm is frictionally engaged by a spring washer and carries integrally a toothed wheel engaging a pinion provided with a knob by means of which the brushes may be rocked.
Patent GB-130744-A (GB)
Title: Improvements in or in and relating to the Frames of Motor and other Cycles.
IPC: B62K11/08
Filed: 1918-08-03
Abstract: 130,744. D. F. & M. Engineering Co., and Ford, W. V. Aug. 3, 1918. Bicycles; frames.-Frames of motor or other cycles are formed of a pair of spaced sheet-metal sides A which are attached at their forward ends to the steering-head and then slope downwards and pass rearwards at the two sides of the back wheel to form the valances of the rear mud-guard. The guard is completed by a cover or roof fixed to the valances, and, at the front, the upper edges of the sides are preferably joined by a roof or cover B. The engine E is arranged between the sides and is mounted upon a removable base-plate A<4> connecting together the two sides. The edges of the sides are strengthened by flanges a, a<1>, and the ball head C has a pair of wings c which enter between the front portions of the flanges and are fixed to the sides, the wings having flanges c', c<2> continued round the ball head. A removable cover ax is arranged over the engine and gear-box and carries an independently removable cover a<xx> for the magneto G. The fuel and oil tanks may be arranged between the front portions of the sides. A platform H built upon the rear portion of the frame may be used as a luggage-carrier or for carrying the seat, and the rear wheel axle may ba mounted in stays or on semi-elliptic springs. A guard a<3> prevents mud from being thrown on to the engine. The frame sides may be ribbed or fluted. According to the Provisional Specification, (1) the rear portion of the frame is closed at the top by sheet metal which is carried down between the sides behind the engine, (2) the socket for the seat-pillar may be formed with, or carried by, a lug fixed in position between the rear portions of the frame side.
Patent GB-1428873-A (GB)
Title: Production of simulated leather
IPC: D04H1/64
Filed: 1974-03-21
Abstract: 1428873 Preparation of simulated leather KURARAY CO LTD 21 March 1974 [31 March 1973 7 May 1973] 12686/74 Heading B2E Simulated leather, e.g. for making shoe uppers, is prepared by impregnating a fibrous substrate with a polyurethane elastomer (A- polymer) and forming a surface layer of a different polyurethane elastomer (B-polymer). A solution or dispersion of A-polymer, e.g. prepared by polymerisation of 1 mole of polyethylene adipate with 5 moles diphenyl methane-4, 4'-diisocyanate and 4 moles of ethylene glycol in dimethylformamide, is used to impregnate the substrate, e.g. a non-woven fabric weighing 360 g/m<SP>2</SP>, and a solution or dispersion of A-polymer and B-polymer, e.g. prepared by polymerisation of 1 mole of polycaprolactone, 4 moles diphenylmethane 4, 4'-diisocyanate and 3 moles ethylene glycol, is coated upon the impregnated substrate and a solution or dispersion of B-polymer is coated on the polymer mixture solution and the polymer solution and/or dispersions are coagulated in a coagulating bath, e.g. 35% aqueous dimethylformamide or the polymer solution or dispersion impregnating the substrate is coagulated in a coagulating bath, a solution or dispersion of B-polymer, with or without A- polymer, is coated or the substrate and this is coagulated by drying, a solution or dispersion of B-polymer is coated upon the previous layer and coagulated in a coagulating bath. Other B-polymers which may be used include the polyurethane prepared by polymerising 1 mole of polytetramethylene glycol, 3 moles of diphenylmethane-4, 4'-diisocyanate and 2 moles propylene glycol. Other A-polymers include a polyurethane prepared from polyethylene adipate, diphenylmethane 4, 4'-diisocyanate and 1. 4-butane diol. Many other polyurethane ingredients are specified. The polyurethanes may be mixed with less than 50% of a compatible polymer, e.g. polyvinyl chloride, polyurea, polyvinyl formel, polymethyl acrylate, polymethyl methacrylate, polyvinyl alcohol, polyacrylonitrile, polyvinyl acetate, cellulose derivatives, copolymers of vinylidine chloride and acrylonitrile, copolymers of vinyl chloride and vinyl acetate and natural or synthetic rubber. Suitable substrates include nylon, polyester and nylon and polystyrene mixture. Pigments, e.g. carbon black and TiO 2  may be added as well as dyes, fillers, stabilisers and coagulation controlling agents.
Patent GB-106392-A (GB)
Title: Improvements in Receptacles, Boxes or Cases for Music and the like.
Inventor: TAYLOR JOHN
IPC: B42F17/02
Filed: 1916-09-08
Abstract: 106,392. Taylor, J. Sept. 8, 1916. Racks; post files; cards.-Boxes &c. for music, documents, post cards, &c. are furnished with boards or plates c, to which are attached rings c<3> strung upon a rod d. The plates have central projections formed on or hinged to them and adapted to pass through slots in a grid b and into a channel in the bottom a' of the box. In some cases, the rings are dispensed with, the projections being perforated to engage with the rod d; also, the grid may be formed in the bottom a<1>, the part b being then dispensed with. The plates c may have staggered projections at the top to facilitate moving them over, as indicated in dotted lines, to give access to the sets of music &c. disposed between them. Any of the plates may be removed, when necessary, after partly withdrawing the rod d.
Patent GB-538982-A (GB)
Title: Device for modulating a high frequency oscillation or for amplifying a modulated high frequency oscillation
IPC: H03F1/07
Filed: 1939-04-28
Abstract: 538,982. Valve amplifying and modulating circuits. TRANSFORMATEUR, and NIKIS, M. April 28, 1939, Nos. 12780 and 12781. Convention dates, April 30, 1938, and April 25, 1939. [Class 40 (v)] With the object of increasing the efficiency of radio telephone transmitters, the modulator or the amplifier for the modulated wave comprises two valves or valve groups connected in push-pull, one of which is saturated by the unmodulated carrier while the other provides the additional power necessary for the modulation peaks. In the amplifier shown in Fig. 1, the two valves 5, 6 are fed in push-pull with modulated waves from the modulator 3. One of the valves 5 is given such steady bias that it is saturated by the unmodulated carrier. The other valve has a larger negative bias so that it only passes current on the wave peaks. The latter bias may be supplemented by an adjustable voltage derived from a potentiometer 13 across the modulating source 2. In Fig. 7, the valves 5 and 6 operate as modulators, both the unmodulated carrier and the modulation voltage from the source 2 being applied to their grids. In a further modification (Fig. 8 not shown) pentode valves are used, the carriers being applied to the control grids, and the modulating voltage to the suppressor grids.
Patent GB-219121-A (GB)
Title: Improved type of arc-welding holder
IPC: B23K9/28
Filed: 1923-05-14
Abstract: 219,121. Winfield, T. C., and Rea, J. C. May 14, 1923. Heating by electricity. -A holder for arc welding electrodes comprises a hollow metal stem S through which passes a rod 0 connected to one of the jaws D and adapted to open or close the switch contacts B, C, the rod being operated by a lever A through the link G. The switch is contained in the handle J and is automatically locked in the closed position while the electrode is held in the jaws. Springs E are provided to ensure good contact between the parts B, C, whatever size of electrode is used.
Patent GB-154133-A (GB)
Title: Improvements in coffee pots
IPC: A47G19/16
Filed: 1920-05-08
Abstract: 154,133. Galt, D. A., and Brown, S. H. May 8, 1920. Pots and jugs.-A coffeepot 1 has a raised base 4 on which a closely-fitting inner receptacle 5 rests. The latter holds the coffee during infusion, but on being raised allows it to escape through perforations in the bottom. An annular groove 10, preferably perforated, allows the steam to escape, while a narrower groove 11 permits the inner receptacle to be held in its raised position by means of a clamp 12 pivoted on the handle 3.
Patent GB-447466-A (GB)
Title: Improvements in miners' and like safety lamps
IPC: F21L23/00
Filed: 1934-11-13
Abstract: 447,466. Miners' safety lamps. HAILWOOD, E. A., Beacon House, Texas Street, Morley, near Leeds. Nov. 13, 1934, No. 12890/36. Divided out of 447,406. [Classes 75 (i) and 75 (iv)] In a miner's safety lamp a sleeve S adjustable on the wick tube T carries a dull or matt imperforate screen S<4> against which the gas cap on the flame produced by the movement of the sleeve can be easily seen. The sleeve S may be operated either directly or through a lever pivoted to the wick tube by a pin P passing through the lamp reservoir. A slot S<1> may be formed in one side of the sleeve S and air gaps S<5> may be provided in its upper edges.
Patent GB-1154657-A (GB)
Title: An Improved Backhoe Shovel Assembly.
IPC: E02F3/32
Filed: 1967-03-20
Abstract: 1,154,657. Shovelling machines. DEERE & CO. 20 March, 1967 [21 March, 1966], No. 12970/67. Heading E1F. The boom of a backhoe shovel assembly is pivotally mounted by a shoe 49 on a support (50) for rotation about an axis 48, which is substantially upright when the support (50) is, in use of the assembly, mounted on a vehicle, by a then substantially horizontally extending ram-linkage assembly 67, 70 pivotally secured between the shoe 49 and the support (50). The support 50 is slidable as a whole along a frame 16 and is lockable to the frame at various positions therealong. The frame 16 is securable to a vehicle so as to be positioned transversely to the direction of advance of the vehicle.
Patent GB-295615-A (GB)
Title: Improvements in rocker and push rod mechanism, particularly for the valve gear of internal combustion engines
IPC: F01L1/16
Filed: 1927-05-14
Abstract: 295,615. Armstrong Siddeley Motors, Ltd., and Smith, F., R. May 14, 1927. Double hinges.-In order to ensure a line rolling contact between rocker and push-rod mechanism, particularly for internal-combustion engine valve gear, a thrust block 7 is inserted so that the contacting surfaces between this block and the push-rod and rocker respectively are rounded in directions at right angles to one another. The upper and lower surfaces of the thrust block may be thus rounded, or the block may be flat and engage rounded surfaces on the rocker and pushrod. The thrust block may be built up of two parts keyed together.
Patent GB-611389-A (GB)
Title: Universal couplings or joints
IPC: F16D3/78
Filed: 1946-04-30
Abstract: 611,389. Universal joints. GENERAL TIRE & RUBBER CO. April 30, 1946, No. 13035. Convention date, Oct. 17, 1945. [Class 80 (ii)] A universal coupling comprises members 2 secured to the parts 3, 4, to be coupled, with end thrust members 7 provided with interdigitated fingers 11. A rubber or like resilient annulus 14 is embraced by the fingers 11 and has inward projections extending between the fingers 11 to transmit the torque. Between the thrust members 7 is a resilient member 9, preferably a rubber ball, which is held in compression by the annulus 14 preventing axial separation of the members 7.
Patent GB-536758-A (GB)
Title: Improvements in or relating to fluid pressure retaining devices for pneumatic tires
IPC: B60C5/22
Filed: 1940-08-15
Abstract: 536,758. Valves. FIRESTONE TIRE & RUBBER CO. Aug. 15, 1940, No. 13066. Convention date, March 23. [Class 135] [Also in Group XXXIV] In a pneumatic tyre comprising an inner chamber 12, Fig. 2, separated from the normal tread-bearing chamber 13 by a diaphragm 11, both chambers being simultaneously inflated through a common valve, the diaphragm is fitted with a rubber &c. valve 17 which permits free communication whilst the chambers are at substantially equal pressures but automatically restricts the air-flow on a pressure-difference in the chambers. As shown, the diaphragm valve comprises a tubular nipple with an oval mouth 20, Figs. 4, 5, or a notched mouth 22, Fig. 6, in which case the stem-portion 21 may be formed with ribs 24 (or grooves) to prevent complete closure on collapse of the outer chamber 13.
Patent GB-833045-A (GB)
Title: Improvements in or relating to flexible electric heaters
Inventor: WILLIAMSON DAVID CONWAY
IPC: H05B3/16
Filed: 1957-04-24
Abstract: 833,045. Flexible electric heaters. ELECTROTHERMAL ENGINEERING Ltd. July 24, 1958 [April 24, 1957], No. 13069/57. Class 39(3) A flexible electric heater, e.g. for heating a pipe, comprises a plurality of parallel rows of overlapping insulating blocks, e.g. of sintered aluminium oxide, each block being so constructed that the element can be located therein other than by threading through the block. As shown, upwardly directed U-shaped blocks 1 alternate in each row with inverted U-shaped blocks 2, each two adjacent blocks being spaced apart by a portion of a block in the next adjacent row and adjacent blocks at the outer edges of the heater being spaced apart by spacing members 4. Wires or bars 5 threaded through aligned holes 3 in the blocks hold the assembly together. The blocks 1 and 2 are so constructed that the base of the U of each block 2 lies above the plane of the base of the U of the adjacent block 1 so that a clear passageway is left along each row of blocks for a strip heating element 6. A block 8 (Figs. 8 to 10, not shown) is provided where the element 6 has to reverse direction in passing from one row to the next, and a block 7 serves as a termination block for connection to an external circuit. At least one of the engaging surfaces of the blocks 1 and 2 may be rounded to facilitate flexure of the heater. The blocks may be in the form of a Greek cross (Fig. 4, not shown) or a Z (Fig. 6, not shown). One face of the heater may be covered with a mat of heat insulating material, e.g. glass fibres.
Patent GB-1387379-A (GB)
Title: Circuit arrangement for limiting the voltage fed to a load
IPC: H02H9/00
Filed: 1973-03-19
Abstract: 1387379 Limiters BROWN BOVERI & CIE AG 19 March 1973 [18 March 1972] 13085/73 Heading H3T [Also in Division H2] In an intrisically safe circuit 14 for limiting the voltage fed to a load in an explosive environment four diodes 16-19 are connected in ring formation, two, 17, 19, being connected together by their anodes and the other two, 16, 18, by their cathodes; A Zener diode 13 is connected at its cathode to the common point 27 of the diode cathodes and at its anode to the common point 28 of the diode anodes, while the output is taken from the opposite points 22, 23 on the diode ring. In the embodiment, the input is applied at terminal 10 and reaches common point 22 via a fuse or circuit breaker 21, and output terminal 25 is fed via series resistors 12, 24, a second limiting circuit 20 being connected to the common point of the resistors.
Patent GB-294316-A (GB)
Title: Improved means for preventing waste of liquid from taps or cocks
IPC: F16K17/164
Filed: 1927-05-16
Abstract: 294,316. Stechmann, G. H. May 16, 1927. Float valves. - A safety cut off device for water pipes comprises a chamber c of substantially circular cross section and of uniform diameter throughout its length containing a float f of wood or hollow metal. The inlet a and outlet b are in axial alignment so that when the supply is re-established the float is pressed against the outlet to prevent waste of water. A push g may be provided to unseat the float or the cap d may be removed and the float unseated by the finger. When under normal conditions the conduit is full of water the float rises to the dotted position to permit an unrestricted flow.
Patent GB-131209-A (GB)
IPC: B60J7/12
Filed: 1918-11-05
Abstract: 131,209. Auster, A. C. Nov. 5, 1918. Hoods.-Relates to hoods of the kind described in Specification 24512/12, in which one of the members 3 or 5 of the front extension pivoted upon tho main hoopstick 1 is connected to a radius rod 8 connected to the body so as to effect the folding or unfolding movement of the front extension conjointly with that of the rear-part of the hood, and consists in connecting the radius rod to a rearward extension 7 of the members 3 or 5 and in arranging a lost-motion device in connexion with the radius rod so that the unfolding of the front extension is delayed until the rear part has been partly raised. As shown in Figs. 2 and 4, this lostmotion device comprises a link 9 interposed between the radius rod 8 and the bracket 10 fixed to the body. No opening movement is imparted to the front extension during the initial raising movement of the main hoopstick 1, the varying distance between the upper joint of the radius rod and the bottom joint of the link 9 being allowed for by the links and radius rod coming into alinement. Movement of the link beyond the vertical position is prevented by a stop on the fixed bracket 10. A spring barrel 11 may be connected to the bracket 10 and to the main hoopstick 1. The link 9 may instead be interposed between the rod 8 and the extension 7 or the rod 8 may be connected to the bracket 10 by a pin and slot. The rod 8 may be connected to an extension of the member 5 instead of the member 3. In the arrangement of framing shown, the hoopstick 1 is pivoted to the bracket 10 at 1<1> and the hoopstick 2 is pivoted to the hookstick 1; the hoopstick 5<1> is pivoted to the number 3. In the extended position, the members 3, 4 and 5, 5' come respectively into alinement.